正解:C
The issue with communication between London and New York could be due to a variety of factors such as routing misconfigurations, hardware failures, or issues with the service provider infrastructure. Option C is the correct answer because it addresses a common cause of communication failure in service provider networks, which is often related to routing or networkconfiguration issues. Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) provides extensive knowledge on configuring, verifying, troubleshooting, and optimizing service provider IP network infrastructures. This includes understanding core architecture, services, networking, automation, quality of services, security, and network assurance, all of which are crucial for resolving such issues.
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